US10179797B2 - Phosphinic peptide derivatives for use as MMP-12 inhibitors - Google Patents

Phosphinic peptide derivatives for use as MMP-12 inhibitors Download PDF

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US10179797B2
US10179797B2 US15/774,649 US201615774649A US10179797B2 US 10179797 B2 US10179797 B2 US 10179797B2 US 201615774649 A US201615774649 A US 201615774649A US 10179797 B2 US10179797 B2 US 10179797B2
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amino
acid
phenethyl
biphenyl
methyl
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US20180319829A1 (en
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Stéphanie BOUDON
Eileen Jackson
Rolf SCHUETZ
Jürgen Herbert VOLLHARDT
Peter Wikstroem
Eliane Ursula WANDELER
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DSM IP Assets BV
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6553—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having sulfur atoms, with or without selenium or tellurium atoms, as the only ring hetero atoms
    • C07F9/655345—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having sulfur atoms, with or without selenium or tellurium atoms, as the only ring hetero atoms the sulfur atom being part of a five-membered ring
    • C07F9/655354—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having sulfur atoms, with or without selenium or tellurium atoms, as the only ring hetero atoms the sulfur atom being part of a five-membered ring condensed with carbocyclic rings or carbocyclic ring systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/16—Amides, e.g. hydroxamic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/66—Phosphorus compounds
    • A61K31/662—Phosphorus acids or esters thereof having P—C bonds, e.g. foscarnet, trichlorfon
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/66—Phosphorus compounds
    • A61K31/67—Phosphorus compounds having sulfur as a ring hetero atom
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/66—Phosphorus compounds
    • A61K31/675—Phosphorus compounds having nitrogen as a ring hetero atom, e.g. pyridoxal phosphate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/55—Phosphorus compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/64—Proteins; Peptides; Derivatives or degradation products thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00—Drugs for dermatological disorders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/08—Anti-ageing preparations
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/15—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen containing halogen
    • C07C53/16—Halogenated acetic acids
    • C07C53/18—Halogenated acetic acids containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/28—Phosphorus compounds with one or more P—C bonds
    • C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
    • C07F9/306—Arylalkanephosphinic acids, e.g. Ar-(CH2)n-P(=X)(R)(XH), (X = O,S, Se; n>=1)
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/553—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having one nitrogen atom as the only ring hetero atom
    • C07F9/572—Five-membered rings
    • C07F9/5728—Five-membered rings condensed with carbocyclic rings or carbocyclic ring systems

Definitions

  • This invention relates to compounds that are selective inhibitors of Matrix Metalloprotease-12 (MMP-12), to cosmetic and pharmaceutical compositions containing them, and to their use in the prevention and/or treatment of ailments associated with MMP-12.
  • MMP-12 Matrix Metalloprotease-12
  • a major characteristic of aged and prematurely aged skin is a high degree of fragmentation of the dermal matrix wherein MMPs are known to play a major role in protein degradation such as the degradation of elastin and collagen, which in turn affects the structural integrity of the dermis.
  • MMPs are known to play a major role in protein degradation such as the degradation of elastin and collagen, which in turn affects the structural integrity of the dermis.
  • protection of extracellular matrix proteins such as elastin and collagen in aged or photo aged human skin by reduction of MMPs is vital to retard the clinical manifestations of skin aging such as wrinkles, sagging, and laxity.
  • retinol treatment reduces matrix metalloprotease expression and stimulates collagen as well as elastin synthesis in naturally aged, sun protected but also in photodamaged skin via an inhibitory effect inter alia on MMP-12.
  • Retinol is known to have serious side effects such as skin irritation.
  • retinol is not very stable in cosmetic compositions and thus not easy to formulate.
  • the present invention relates to a compound of formula (I)
  • side chain of an amino acid refers to that portion of the amino acid attached to the common NH 2 — H—COOH backbone of the respective amino acids.
  • side chain of serine is —CH 2 —OH and the side chain of alanine is —CH 3 .
  • amino acid refers to any natural or unnatural amino acid.
  • natural amino acid refers to the 20 proteogenic (protein-forming) amino acids coded in the genetic code. These are: alanine, leucine, isleucine, valine, methionine, cysteine, serine, threonine, aspartic acid, asparagine, glutamic acid, glutamine, arginine, lysine, tryptophan, histidine, phenyl alanine, tyrosine, glycine and proline.
  • Unnatural amino acids refers any organic compounds containing amine (—NH 2 ) and carboxylic (—COOH) functional group.
  • amino acids of the general formula H 2 NCR 1 R 2 COOH amino acids of the general formula H 2 NCR 1 R 2 COOH
  • beta amino acids of general formula H 2 NCR 1 R 2 CH 2 COOH amino acids of the general formula H 2 NCR 1 R 2 CH 2 COOH
  • gamma aminoacids of general formula H 2 NCR 1 R 2 CH 2 CH 2 COOH wherein R 1 and R 2 are as defined above.
  • substituted refers to the substitution of a functional group present in the side chain of the respective amino such as an —OH, —NH 2 or —NH— group acid.
  • C 1 -C 6 alkyl groups are unbranched C 1 -C 6 alkyl or branched C 3 -C 6 alkyl groups such as methyl, ethyl, n-propyl, 1-methylethyl, n-butyl, 1-methylpropyl, 2-methylpropyl, 1,1-dimethylethyl, n-pentyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl, 2,2-dimethylpropyl, 1-ethylpropyl, n-hexyl, 1,1-dimethylpropyl, 1,2-dimethylpropyl, 1-methylpentyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 1,1-dimethylbutyl, 1,2-dimethylbutyl, 1,3-dimethylbutyl, 2,2-dimethylbutyl, 2,3-dimethylbutyl, 3,3-dimethylbutyl, 1-ethyl
  • Preferred C 1 -C 6 alkyl groups are methyl, ethyl and 1,1-dimethylethyl.
  • arylC 1 -C 6 alkanyl groups include, but are not limited to benzyl groups.
  • the most preferred arylC 1 -C 6 alkanyl group in all embodiments of the present invention is the benzyl group.
  • the present invention encompasses the compounds of formula (I) as optically pure isomers such as e.g. as pure enantiomers or stereoisomers as well as mixtures of different isomers such as e.g. as racemates, or mixtures of diastereoisonmers.
  • a cosmetically acceptable salt thereof refers to compounds of formula (I) in the form of acid and addition salt such as in the form of a chloride, an acetate or a trifluoroacetate salt or a salt formed by the addition of a base such as an alkali or earth alkaline salt, in particular lithium, sodium, potassium, magnesium or calcium salts.
  • a base such as an alkali or earth alkaline salt, in particular lithium, sodium, potassium, magnesium or calcium salts.
  • Most preferred according to the present invention are the compounds as such or in the form of their addition salt with acetic acid or trifluoroacetic acid.
  • Most preferred are the compounds as such or in the form of their addition salt with trifluoroacetic acid.
  • Such salts are easily prepared by a person skilled in the art.
  • Preferred amino acid side chains are the nonpolar or uncharged polar side chains of amino acids such as in particular the side chains of asparagine, glutamine, phenylalanine, methionine, valine, glycine, 2,4-diaminobutyric acid, 2-aminobutyric acid, alanine, leucine, isoleucine, norleucine, tryptophan, thiotryptophan, cyclohexylglycine, ⁇ -amino-2-naphthalenepropionic acid, serine, threonine, tyrosine, proline as well as cysteine.
  • amino acids such as in particular the side chains of asparagine, glutamine, phenylalanine, methionine, valine, glycine, 2,4-diaminobutyric acid, 2-aminobutyric acid, alanine, leucine, isoleucine, norleucine, tryptophan, thi
  • Particular advantageous unsubstituted amino acid side chains in all embodiments of the present invention are the ones of phenylalanine, methionine, valine, thiotryptophan, isoleucine, tryptophan, 2,4-diaminobutyric acid, leucine, ⁇ -amino-2-naphthalenepropionic acid, norleucine, asparagine, alanine, 2-amino butyric acid, and cyclohexylglycine, most preferred are the ones of thiotryptophan, isoleucine, tryptophan, 2,4-diaminobutyric acid, leucine, ⁇ -amino-2-naphthalenepropionic acid, norleucine, asparagine, alanine, 2-amino butyric acid, and cyclohexylglycine.
  • the functional groups of the amino acid side chain are preferably either unsubstituted or substituted with a C 1 -C 6 alkoxycarbonyl group, such as most preferably with a tert-Butyloxycarbonyl (Boc) group.
  • Most preferred substituted amino acid side chains according to the invention are the side chains of 2-amino-4-(tert-butoxycarbonylamino)butyric acid and 1-[(1,1-dimethylethoxy)carbonyl]-tryptophan.
  • Particularly advantageous stereoisomers according to the present invention are the ones listed in table 2:
  • 2-Biphenyl-4-yl-acrylic acid (A) is coupled with an appropriate ester of the respective amino acid (AA; R 3 ⁇ H) using common coupling techniques as e.g. outlined in Peptide chemistry: A practical textbook by M Bodansky (Springer-Verlag, Heidelberg. 1988).
  • the resulting intermediate (B) is subsequently condensed with (2-phenylethyl)phosphinic acid (C) as outlined in Chen et al (J. Med. Chem 2000, 43, pp 1398-1408) resulting in compounds of formula (I) wherein R 3 ⁇ H, which may then be subjected to ester hydrolyses e.g. using trifluoro acetic acid in dichloromethane to yield the corresponding compounds of formula (I) wherein R 3 ⁇ H.
  • diastereomeric mixtures may be used as such or may further be separated by chromatographic methods known in the art such as e.g. preparative HPLC (High Performance Liquid Chromatography).
  • the present invention relates to cosmetic compositions comprising a compound of formula (I) with all the definitions and preferences as given above and a cosmetically acceptable carrier.
  • the present invention relates to the use of a compound of a formula (I) with all the definitions and preferences as given herein as MMP-12 inhibitor, in particular for the protection of elastin and/or collagen (by a reduction of the degradation of elastin/collagen by MMP-12), particular in aged and/or photo damaged skin.
  • the invention relates to the use of a compound of a formula (I) with all the definitions and preferences as given herein for the protection of elastin against UV-A light induced degradation.
  • the uses according to the present invention are a cosmetic uses, i.e. for the cosmetic treatment of the human skin (to beautify the skin).
  • the invention also relates to a method for preventing and/or treating aged or senescent skin such as preferably to smoothen wrinkles and fine lines, to decrease their volume and depth, and/or to treat skin sagging and to improve skin firmness said method comprising the step of applying a cosmetic composition according to the present invention with all the definitions and preferences given herein to the affected area and optionally appreciating the effect.
  • the invention relates to a method to protect the extracellular matrix proteins such as in particular elastin and/or collagen, said method comprising the step of applying a cosmetic composition according to the present invention with all the definitions and preferences given herein to an area in need thereof.
  • cosmetic composition refers to compositions, which are used to treat, care for or improve the appearance of the skin and/or the scalp.
  • Particular advantageous cosmetic compositions are skin care compositions.
  • compositions according to the invention are preferably intended for topical application, which is to be understood as the external application to keratinous substances, such as in particular the skin.
  • cosmetically acceptable carrier refers to a physiologically acceptable medium which is compatible with keratinous substances.
  • suitable carriers are well known in the art and are selected based on the end-use application.
  • the carriers of the present invention are suitable for application to skin (e.g., sunscreens, creams, milks, lotions, masks, serums, hydrodispersions, foundations, creams, creamgels, or gels etc.).
  • Such carriers are well known to one of ordinary skill in the art, and can include one or more compatible liquid or solid filler diluent, excipient, additive or vehicle, which are suitable for application to skin.
  • compositions of the present invention preferably comprise from about 75% to about 99.999%, more preferably from about 85% to about 99.99%, still more preferably from 90% to about 99%, and most preferably, from about 93% to about 98%, by weight of the composition, of a carrier.
  • compositions of the present invention can be formulated into a wide variety of product types, including creams, waxes, pastes, lotions, milks, mousses, gels, oils, tonics, and sprays.
  • the compounds of formula (I) are formulated into lotions, creams, gels, and sprays.
  • These product forms may be used for a number of applications, including, but not limited to, hand and body lotions, facial moisturizers, anti-ageing preparations, make-ups including foundations, and the like. Any additional components required to formulate such products vary with product type and can be routinely chosen by one skilled in the art.
  • compositions of the present invention are formulated as an aerosol and applied to the skin as a spray-on product, a propellant is added to the composition.
  • the amount of the compound of formula (I) in the cosmetic composition can easily be adjusted by a person skilled in the art in order to achieve the desired beneficial effect.
  • the amount of the compound of formula (I) in the cosmetic compositions according to the present invention is at least 1 ppm based on the total weight of the cosmetic composition.
  • the amount of the compound of formula (I) is preferably selected in the range of about 0.00001 to 0.5 wt.-%, more preferably in the range of 0.0001 to 0.25 wt.-%, most preferably in the range of 0.0001 to 0.1 wt.-% based on the total weight of the cosmetic composition.
  • compositions according to the present invention can be prepared by conventional methods in the art such as e.g. by admixing a compound of formula (I) with all the definitions and preferences given herein with the cosmetically acceptable carrier.
  • the cosmetic compositions of the invention may comprise further conventional cosmetic adjuvants and additives, such as preservatives/antioxidants, fatty substances/oils, water, organic solvents, silicones, thickeners, softeners, emulsifiers, antifoaming agents, aesthetic components such as fragrances, surfactants, fillers, anionic, cationic, nonionic or amphoteric polymers or mixtures thereof, propellants, acidifying or basifying agents, dyes, colorings/colorants, abrasives, absorbents, chelating agents and/or sequestering agents, essential oils, skin sensates, astringents, pigments or any other ingredients usually formulated into such compositions.
  • cosmetic adjuvants and additives such as preservatives/antioxidants, fatty substances/oils, water, organic solvents, silicones, thickeners, softeners, emulsifiers, antifoaming agents, aesthetic components such as fragrances, surfactants, fillers, anionic, cationic
  • the cosmetic compositions according to the invention may also comprise further cosmetically active ingredients conventionally used in cosmetic compositions.
  • active ingredients encompass skin lightening agents; UV-filters, agents for the treatment of hyperpigmentation; agents for the prevention or reduction of inflammation; firming, moisturizing, soothing, and/or energizing agents as well as agents to improve elasticity and skin barrier.
  • cosmetic excipients examples include cosmetic excipients, diluents, adjuvants, additives as well as active ingredients commonly used in the skin care industry which are suitable for use in the cosmetic compositions of the present invention are for example described in the International Cosmetic Ingredient Dictionary & Handbook by Personal Care Product Council (http://www.personalcarecouncil.org/), accessible by the online INFO BASE (http://online.personalcarecouncil.org/jsp/Home.jsp), without being limited thereto.
  • the necessary amounts of the active ingredients as well as the cosmetic excipients, diluents, adjuvants, additives etc. can, based on the desired product form and application, easily be determined by the skilled person.
  • the additional ingredients can either be added to the oily phase, the aqueous phase or separately as deemed appropriate.
  • the cosmetically active ingredients useful herein can in some instances provide more than one benefit or operate via more than one mode of action.
  • the cosmetic compositions according to the present invention may be in the form of a suspension or dispersion in solvents or fatty substances, or alternatively in the form of an emulsion or micro emulsion, in particular of oil-in-water (O/W) or water-in-oil (W/O) type, silicone-in-water (Si/W) or water-in-silicone (W/Si) type, PIT-emulsion, multiple emulsion (e.g.
  • oil-in-water-in oil O/W/O
  • water-in-oil-in-water W/O/W
  • pickering emulsion hydrogel, alcoholic gel, lipogel, one- or multiphase solution or vesicular dispersion or other usual forms, which can also be applied by pens, as masks or as sprays.
  • the amount of the oily phase present in such cosmetic emulsions is preferably at least 10 wt.-%, such as in the range of 10 to 60 wt.-%, preferably in the range of 15 to 50 wt.-%, most preferably in the range of 15 to 40 wt.-%, based on the total weight of the cosmetic composition.
  • the cosmetic compositions according to the present invention are advantageously in the form of an oil-in-water (O/W) emulsion comprising an oily phase dispersed in an aqueous phase in the presence of an O/W emulsifier.
  • O/W oil-in-water
  • the preparation of such O/W emulsions is well known to a person skilled in the art.
  • the cosmetic composition according to the invention is an O/W emulsion
  • it contains advantageously at least one O/W- or Si/W-emulsifier selected from the list of, glyceryl stearate citrate, glyceryl stearate SE (self-emulsifying), stearic acid, salts of stearic acid, polyglyceryl-3-methylglycosedistearate.
  • O/W- or Si/W-emulsifiers selected from the list of, glyceryl stearate citrate, glyceryl stearate SE (self-emulsifying), stearic acid, salts of stearic acid, polyglyceryl-3-methylglycosedistearate.
  • phosphate esters and the salts thereof such as cetyl phosphate (e.g. as Amphisol® A from DSM Nutritional Products Ltd.), diethanolamine cetyl phosphate (e.g.
  • emulsifiers are sorbitan oleate, sorbitan sesquioleate, sorbitan isostearate, sorbitan trioleate, cetearyl glucoside, lauryl glucoside, decyl glucoside, sodium stearoyl glutamate, sucrose polystearate and hydrated polyisobutene.
  • one or more synthetic polymers may be used as an emulsifier. For example, PVP eicosene copolymer, acrylates/C10-30 alkyl acrylate crosspolymer, and mixtures thereof.
  • the at least one O/W, respectively Si/W emulsifier is preferably used in an amount of 0.5 to 10 wt. %, in particular in the range of 0.5 to 6 wt.-%, such as more in particular in the range of 0.5 to 5 wt.-%, such as most in particular in the range of 1 to 4 wt.-%, based on the total weight of the cosmetic composition.
  • Particular suitable O/W emulsifiers to be used in the cosmetic compositions according to the invention encompass phosphate ester emulsifiers such as advantageously 8-10 alkyl ethyl phosphate, C9-15 alkyl phosphate, ceteareth-2 phosphate, ceteareth-5 phosphate, ceteth-8 phosphate, ceteth-10 phosphate, cetyl phosphate, C6-10 pareth-4 phosphate, C12-15 pareth-2 phosphate, C12-15 pareth-3 phosphate, DEA-ceteareth-2 phosphate, DEA-cetyl phosphate, DEA-oleth-3 phosphate, potassium cetyl phosphate, deceth-4 phosphate, deceth-6 phosphate and trilaureth-4 phosphate.
  • phosphate ester emulsifiers such as advantageously 8-10 alkyl ethyl phosphate, C9-15 alkyl phosphate, ceteareth-2 phosphate, ceteareth
  • a particular suitable O/W emulsifier to be used in the cosmetic compositions according to the invention is potassium cetyl phosphate e.g. commercially available as Amphisol® K at DSM Nutritional Products Ltd Kaiseraugst.
  • O/W emulsifiers are non-ionic self-emulsifying systems derived from olive oil e.g. known as (INCI Name) cetearyl olivate and sorbitan olivate (chemical composition: sorbitan ester and cetearyl ester of olive oil fatty acids) sold under the tradename OLIVEM 1000.
  • the invention relates to cosmetic compositions with all the definitions and preferences given herein in the form of O/W emulsions comprising an oily phase dispersed in an aqueous phase in the presence of an O/W emulsifier wherein the O/W emulsifier is potassium cetyl phosphate.
  • the amount of oily phase in such O/W emulsions is preferably at least 10 wt.-%, more preferably in the range of 10 to 60 wt.-%, most preferably in the range of 15 to 50 wt.-%, such as in the range of 15 to 40 wt.-%.
  • the cosmetic compositions according to the invention in general have a pH in the range of 3 to 10, preferably a pH in the range of 4 to 8 and most preferably a pH in the range of 4 to 7.5.
  • the pH can easily be adjusted as desired with suitable acids, such as e.g. citric acid, or bases, such as sodium hydroxide (e.g. as aqueous solution), triethanolamine (TEA Care), tromethamine (Trizma Base) and aminomethylpPropanol (AMP-Ultra PC 2000), according to standard methods in the art.
  • the amount of the cosmetic composition to be applied to the skin is not critical and can easily be adjusted by a person skilled in the art.
  • the amount is selected in the range of 0.1 to 3 mg/cm 2 skin, such as preferably in the range of 0.1 to 2 mg/cm 2 skin and most preferably in the range of 0.5 to 2 mg/cm 2 skin.
  • the compounds according to the present invention may be used to prepare a pharmaceutical composition together with a pharmaceutical acceptable carrier, diluent or excipient for the treatment, prevention and/or prophylaxis of any disorder and disease where it is desirable to inhibit MMP-12 in a patient in need thereof such as e.g. for the treatment, prevention and/or prophylaxis of cancer, rheumatoid arthritis, osteoarthritis.
  • MS/HPLC-spectra were measured on a Waters Alliance 2695 HPLC system, equipped with a Waters Symmetry C18, 3.5 ⁇ m, 4.6 mm ⁇ 50 mm analytical column and with a Waters 2996 photodiode array detector (PDA) operating in the 200-400 nm wavelength range coupled to a Waters ZQ 4000 (Single Quadrupole Detector) mass spectrometer operating in positive electrospray ionization (ESI+) mode and detecting in the m/z range 100-1500.
  • PDA Waters 2996 photodiode array detector
  • ESI+ Single Quadrupole Detector
  • H 2 O+0.07% TFA (A phase) and MeCN+0.07% TFA (B phase) were used as eluents, with a flow rate of 1.0 mL/min.
  • reaction mixture was diluted with 100 ml of EtOAc and BSA quenched by addition of 10 ml water. After washing thoroughly with fresh water and saturated NaCl-solution, drying over Na 2 SO 4 , filtration and evaporation of solvent, 710 mg of a yellowish oil was obtained.
  • the crude product was chromatographed using preparative HPLC to separate the two formed diastereomers yielding after lyophilization
  • the MMP-12 inhibitor activity was quantified by fluorometric analysis using the MMP-12 Fluorometric Drug Discovery Kit (Enzo Life Sciences Inc., Farmingdale, N.Y., USA) according to the manufacturers' instructions.
  • Example 4-1 Inhibition of the Degradation of the Elastin Fibers Produced by Human Dermal Fibroblasts
  • Human dermal fibroblasts were pre-cultured in DMEM, 10% FCS, 1% P/S for 48 hrs before starving them in DMEM, 0.2% FCS, 1% P/S for 24 hrs.
  • TGFb1 (10 ng/ml) was added and incubated for 5 days. After incubation with TGFb1, medium was carefully discarded and cells were washed with assay buffer (HBSS, 25 ⁇ M HEPES).
  • assay buffer HBSS, 25 ⁇ M HEPES
  • MMP-12 200 U/ml
  • compounds were mixed in assay buffer and allowed to interact for 30 min. This mixture was then added to the cells and incubated for 2 hrs at 37° C.
  • Example 4-2 Total Dermal Elastin after UV-Irradiation
  • the samples were irradiated daily with 800% of the Biological Effective Dose of daylight (BED; Del Bino et al, Pigment Cell research, 19, 2006) equal to a dose of 45 J/cm 2 UVA using an adopted BIO-SUN system (Vilber Lourmat).
  • BED Biological Effective Dose of daylight
  • BIO-SUN BIO-SUN system
  • At day 6 twelve skin sections were immunostained with mouse monoclonal anti-Elastin antibody (Sigma cat#E4013).
  • the papillary dermis is selected for the analysis.
  • the evaluation has been performed by estimating both color intensity and distribution with IMAGE J (NIH) analysis software Two slides of each skin sample have been processed by image acquisition and related analysis (i.e. 12 images for each treatment). The score of the dermal Elastin of the non-UV treated sample was set to 100%.
  • Table 5-1 outlines exemplary O/W emulsions, wherein one compound (eventually as mixture of stereoisomers) selected from the group of I (a-r) [Table 1] and (I)-(A-V) [Table 2], is incorporated in the indicated amount.

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CHEMICAL ABSTRACTS, 1 January 2001, Columbus, Ohio, US; SCHIODT C B; BUCHARDT J; TERP G E; CHRISTENSEN U; BRINK M; BERGER LARSEN Y; MELDAL M; FOGED N T: "Phosphinic peptide inhibitors of macrophage metalloelastase (MMP-12). Selectivity and mechanism of binding" XP002756234
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SCHIODT C B, BUCHARDT J, TERP G E, CHRISTENSEN U, BRINK M, BERGER LARSEN Y, MELDAL M, FOGED N T: "Phosphinic peptide inhibitors of macrophage metalloelastase (MMP-12). Selectivity and mechanism of binding.", CURRENT MEDICINAL CHEMISTRY, BENTHAM, NL, vol. 8, no. 8, 1 July 2001 (2001-07-01), NL, pages 967 - 976, XP008179667, ISSN: 0929-8673, DOI: 10.2174/0929867013372670
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